/* ==========================================================================
   折角官网 · 样式
   设计 token 参照语雀 about 页实测值，详见 .workbuddy/memory/MEMORY.md
   ========================================================================== */

/* ---------- 变量 ---------- */
:root {
  --green: #00b96b;
  --green-l: #21ce85;
  --green-d: #0a9a5c;
  --blue: #166eff;
  --ink: #262626;
  --ink-strong: #000;
  --gray: #7f7f7f;
  --gray-2: #86909c;
  --gray-3: #aeb5bd;
  --line: #ececec;
  --soft: #f7f8fa;
  --soft-2: rgba(236, 236, 236, 0.48);
  --radius-card: 38px;
  --font: 'PingFang SC', 'HarmonyOS Sans SC', 'MiSans', 'Source Han Sans CN',
    'Noto Sans SC', 'Hiragino Sans GB', 'Microsoft YaHei', -apple-system,
    BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Courier New', monospace;
}

/* ---------- 重置 ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: auto;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: 0; background: none; cursor: pointer; color: inherit; }
img, svg { display: block; }
kbd, code { font-family: var(--mono); }

.wrap {
  width: min(1140px, calc(100% - 48px));
  margin-inline: auto;
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 198px;
  height: 57px;
  border-radius: 11px;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.2px;
  transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-solid {
  color: #fff;
  background: var(--green);
  box-shadow: 0 6px 18px rgba(0, 185, 107, 0.26);
}
.btn-solid:hover { box-shadow: 0 10px 26px rgba(0, 185, 107, 0.34); }
.btn-soft { color: #111; background: var(--soft-2); }
.btn-soft:hover { background: #e6e6e6; }
.btn-line {
  width: auto;
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 6px;
}
.btn-line:hover { background: rgba(255, 255, 255, 0.1); }

/* ==========================================================================
   导航
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  height: 57px;
  padding: 0 38px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}
.nav.is-stuck {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06), 0 8px 24px -18px rgba(0, 0, 0, 0.28);
}
.brand { display: flex; align-items: center; gap: 7px; }
.brand-mark { width: 26px; height: 26px; }
.brand-name { font-size: 16px; font-weight: 600; letter-spacing: 0.4px; color: #1a1a1a; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  margin: 0 auto 0 105px;
}
.nav-links a {
  position: relative;
  font-size: 14px;
  color: var(--ink);
  white-space: nowrap;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--green); }
.nav-links a.is-active { font-weight: 500; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 14px;
  border-radius: 6px;
  font-size: 13px;
  color: #fff;
  background: var(--green);
  white-space: nowrap;
  transition: background 0.2s ease;
}
.nav-cta:hover { background: #00a75f; }


/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding: 103px 0 168px; }
.hero-grid {
  display: grid;
  grid-template-columns: 520px minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}
.hero-text { padding-top: 0; }
/* 标题上方一行关键词条：把三个卖点压成可扫读的短词，主标题才能回到两行 */
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: #0a9a5c;
}
.hero-eyebrow i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--green);
  opacity: 0.5;
}
.hero h1 {
  font-size: 100px;
  font-weight: 600;
  line-height: 125px;
  letter-spacing: normal;
  color: var(--ink);
}
.hero-sub {
  max-width: 480px;
  margin-top: 26px;
  font-size: 18px;
  line-height: 34px;
  color: var(--gray);
}
.hero-actions { display: flex; gap: 14px; margin-top: 60px; }
.btn {
  display: inline-grid;
  place-items: center;
  width: 198px;
  height: 57px;
  font-size: 20px;
  font-weight: 500;
  border-radius: 11px;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.btn-solid { color: #fff; background: var(--green); }
.btn-solid:hover { background: #0aa863; transform: translateY(-1px); box-shadow: 0 10px 24px -12px rgba(0, 185, 107, 0.8); }
.btn-soft { color: #1d2129; background: rgba(236, 236, 236, 0.48); }
.btn-soft:hover { background: rgba(226, 226, 226, 0.9); }

/* 产品界面（顶栏 + 目录树 + 编辑器，结构与真实后台一致） */
.hero-visual { position: relative; margin-top: -16px; }
.app {
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 500px;
  overflow: hidden;
  font-size: 10px;
  line-height: 1.6;
  color: #4e5969;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 24px 60px -28px rgba(23, 43, 77, 0.28), 0 2px 8px rgba(23, 43, 77, 0.06);
  transform: translateZ(0);
}

/* 顶栏 */
.app-top {
  display: flex;
  align-items: center;
  gap: 7px;
  flex: none;
  height: 34px;
  padding: 0 9px;
  border-bottom: 1px solid #f0f1f3;
}
.app-brand { display: flex; align-items: center; gap: 4px; flex: none; }
.app-brand svg { width: 14px; height: 14px; }
.app-brand b { font-size: 11px; font-weight: 600; color: #1d2129; letter-spacing: 0.2px; }
.app-brand em { font-size: 6px; font-style: normal; letter-spacing: 0.8px; color: #b0b6be; }
.app-nb {
  display: flex; align-items: center; gap: 4px; flex: none;
  height: 20px; padding: 0 6px;
  font-size: 9.5px; color: #1d2129;
  background: #f5f6f8; border-radius: 5px;
}
.app-nb i {
  display: grid; place-items: center;
  width: 11px; height: 11px;
  font-size: 7px; font-style: normal; color: #0a7a49;
  background: #e6f8ef; border-radius: 3px;
}
.app-nb .caret { font-size: 7px; color: #a6adb9; }
.app-find {
  display: flex; align-items: center; justify-content: space-between;
  flex: 1; min-width: 0;
  height: 20px; padding: 0 7px;
  font-size: 9px; color: #a6adb9;
  background: #f5f6f8; border-radius: 5px;
}
.app-find b {
  padding: 0 3px;
  font-size: 7px; font-weight: 400; color: #b6bcc6;
  background: #fff; border-radius: 3px;
}
.app-links { display: flex; align-items: center; gap: 6px; flex: none; font-size: 9px; color: #4e5969; }
.app-links .who { padding: 1px 5px; color: #86909c; background: #f5f6f8; border-radius: 4px; }

.app-body { display: flex; flex: 1; min-height: 0; }

/* 侧栏：只有目录树 */
.app-side {
  width: 132px;
  flex: none;
  padding: 8px 6px;
  background: #f7f8fa;
  border-right: 1px solid #f0f1f3;
}
.side-acts {
  display: flex; align-items: center; gap: 5px;
  padding: 0 2px 7px;
  margin-bottom: 5px;
  border-bottom: 1px solid #eef1f4;
}
.sa-new { flex: 1; font-size: 9.5px; font-weight: 600; color: #0a9a5c; white-space: nowrap; }
.sa-ico { font-size: 9px; color: #a6adb9; }
.tree-g {
  display: flex; align-items: center; gap: 2px;
  padding: 4px 2px;
  font-size: 9.5px; font-weight: 600; color: #1d2129;
}
.tree-g i { font-style: normal; font-size: 7px; color: #b6bcc6; }
.tree-i {
  padding: 3px 2px 3px 12px;
  font-size: 9.5px; color: #4e5969;
  border-radius: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.tree-i.is-on { color: #0a9a5c; background: #e8f8f0; }
.tree-i.is-open { display: flex; align-items: center; gap: 2px; padding-left: 6px; color: #1d2129; }
.tree-i.is-open i { font-style: normal; font-size: 7px; color: #b6bcc6; }
.tree-i.is-sub { padding-left: 22px; }

/* 正文区 */
.app-main { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.app-tools {
  display: flex; align-items: center; gap: 1px; flex: none;
  padding: 5px 10px;
  border-bottom: 1px solid #f0f1f3;
  overflow: hidden;
}
.at {
  padding: 1px 3px;
  font-size: 8.2px; color: #4e5969;
  border-radius: 3px;
  white-space: nowrap;
}
.at.on { color: #0a7a49; background: #eef9f3; }
.at-sep { width: 1px; height: 9px; margin: 0 2px; background: #eceff2; }
.app-tools--full { gap: 3px; padding: 7px 12px; }
.app-tools--full .at { font-size: 9px; padding: 2px 5px; }
.app-doc { flex: 1; padding: 12px 14px; overflow: hidden; }
.doc-line { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.doc-line h5 { font-size: 13px; font-weight: 600; color: #111; line-height: 1.5; }
.docbar { display: flex; align-items: center; gap: 5px; flex: none; font-size: 8px; color: #b0b6be; }
.docbar .saved { display: flex; align-items: center; gap: 3px; color: #86909c; }
.docbar .ico { color: #b0b6be; }
.docbar .saved i { width: 4px; height: 4px; border-radius: 50%; background: #00b96b; }
.savebtn { padding: 2px 6px; font-size: 8px; font-weight: 500; color: #fff; background: #00b96b; border-radius: 4px; }
.atag {
  display: inline-block;
  margin: 5px 0 7px; padding: 1px 5px;
  font-size: 8px; color: #a6adb9;
  border: 1px dashed #e3e8ee; border-radius: 3px;
}

/* ==========================================================================
   双渐变卡
   ========================================================================== */
.duo { padding-bottom: 185px; }
.duo-grid {
  display: grid;
  grid-template-columns: 631px 1fr;
  gap: 49px;
}
.gcard {
  position: relative;
  height: 456px;
  padding: 48px 48px 0;
  border-radius: var(--radius-card);
  overflow: hidden;
  color: #fff;
}
.gcard--green { background: linear-gradient(124deg, #00b96b 1%, #21ce85 72%); }
.gcard--blue { background: linear-gradient(136deg, #166eff 0%, #2174fc 0%, #319ff6 95%); }
.gcard h3 { font-size: 28px; font-weight: 700; line-height: 32px; padding-bottom: 16px; }
.gcard p { font-size: 16px; line-height: 28px; color: rgba(255, 255, 255, 0.92); }
.gcard-shot {
  position: absolute;
  left: 24px; right: 24px; bottom: 0;
  height: 258px;
  display: flex;
}

/* 绿卡内部：目录树 + 笔记（真实侧栏结构） */
.mini {
  display: flex;
  width: 100%;
  height: 100%;
  overflow: hidden;
  color: #1d2129;
  background: #fff;
  border-radius: 10px 10px 0 0;
  box-shadow: 0 -2px 20px -8px rgba(0, 0, 0, 0.18);
}
.mini-side { width: 132px; flex: none; padding: 12px 8px; background: #f7f8fa; border-right: 1px solid #f0f1f3; }
.ms-top { padding-bottom: 8px; margin-bottom: 6px; font-size: 10px; font-weight: 600; color: #0a9a5c; border-bottom: 1px solid #eef1f4; }
.ms-g { padding: 4px 2px; font-size: 10px; font-weight: 600; color: #1d2129; }
.ms-i { padding: 4px 2px 4px 12px; font-size: 10px; color: #4e5969; border-radius: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ms-i.is-on { color: #0a9a5c; background: #e8f8f0; }
.mini-main { flex: 1; min-width: 0; padding: 14px 18px; }
.ms-crumb { font-size: 8.5px; color: #b0b6be; }
.ms-title { display: block; margin: 4px 0 5px; font-size: 13px; font-weight: 600; }
.ms-tagrow span { display: inline-block; padding: 1px 5px; font-size: 8px; color: #a6adb9; border: 1px dashed #e3e8ee; border-radius: 3px; }
.ms-cal {
  margin: 8px 0 9px; padding: 6px 9px;
  font-size: 9.5px; color: #2563eb;
  background: #eef4ff; border-left: 3px solid #2563eb; border-radius: 4px;
}
.ms-sub { margin: 9px 0 6px; font-size: 9px; font-weight: 600; color: #1d2129; }
.ms-line { height: 5px; margin-bottom: 7px; background: #f0f2f5; border-radius: 3px; }
.ms-line.mid { width: 82%; }
.ms-line.short { width: 54%; }

/* 蓝卡内部：操作动态 */
.mini--act { display: block; padding: 12px 16px; }
.act-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 8px; border-bottom: 1px solid #f2f3f5; }
.act-head b { font-size: 11px; font-weight: 600; color: #1d2129; }
.act-head span { font-size: 8.5px; color: #a6adb9; }
.act-row { display: flex; align-items: center; gap: 8px; height: 32px; font-size: 9px; border-bottom: 1px solid #f7f8fa; }
.act-row em { width: 56px; flex: none; font-style: normal; color: #b0b6be; }
.act-row .who { width: 30px; flex: none; color: #4e5969; }
.act-row .tg {
  flex: none; padding: 1px 5px;
  font-style: normal; font-size: 8.5px; border-radius: 3px;
}
.tg-add { color: #0a7a49; background: #eafaf2; }
.tg-mod { color: #2563eb; background: #eef4ff; }
.tg-del { color: #d93a3f; background: #fdeeef; }
.act-row b { flex: 1; min-width: 0; font-size: 9.5px; font-weight: 400; color: #1d2129; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ==========================================================================
   Feature 区块（编辑器 / 目录编排）
   ========================================================================== */
.feat { padding: 130px 0 64px; }
.feat h2 {
  font-size: 60px;
  font-weight: 700;
  line-height: 105px;
  letter-spacing: -0.5px;
  color: var(--ink-strong);
}
.feat-lead {
  max-width: 1010px;
  margin-top: 2px;
  font-size: 16px;
  line-height: 28px;
  color: var(--gray);
}
.feat-body {
  display: flex;
  align-items: center;
  gap: 56px;
  margin-top: 60px;
}
.feat--rev .feat-body { flex-direction: row-reverse; }
.feat--rev { padding-bottom: 101px; }
.feat--rev .feat-tabs { width: 420px; }
.feat-tabs { width: 455px; flex: none; }
.ft { display: block; width: 100%; padding: 0; margin-bottom: 26px; text-align: left; }
.ft-name {
  display: block;
  font-size: 30px;
  font-weight: 600;
  line-height: 52.5px;
  color: var(--gray-3);
  transition: color 0.25s ease;
}
.ft:hover .ft-name { color: #8f979f; }
.ft.is-on .ft-name { color: var(--green); }
.ft-desc {
  display: none;
  padding-bottom: 8px;
  font-size: 14px;
  line-height: 24px;
  color: var(--gray-2);
}
.ft.is-on .ft-desc { display: block; }

.feat-stage { position: relative; flex: 1; min-width: 0; }
.pane { display: none; }
.pane.is-on { display: block; animation: fadeUp 0.45s cubic-bezier(0.22, 0.61, 0.36, 1); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

.pane-win {
  display: flex;
  flex-direction: column;
  height: 472px;
  overflow: hidden;
  background: #fff;
  border: 1px solid #f0f1f3;
  border-radius: 12px;
  box-shadow: 0 30px 70px -34px rgba(23, 43, 77, 0.34), 0 3px 12px rgba(23, 43, 77, 0.05);
}

/* 每个窗口共用的真实顶栏 */
.mini-top {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 40px;
  padding: 0 14px;
  border-bottom: 1px solid #f0f1f3;
}
.mt-brand { font-size: 13px; font-weight: 600; color: #1d2129; letter-spacing: 0.3px; }
.mt-nb {
  padding: 2px 8px;
  font-size: 10.5px; color: #1d2129;
  background: #f5f6f8; border-radius: 5px;
}
.mt-find {
  flex: 1; max-width: 210px;
  padding: 3px 9px;
  font-size: 10px; color: #a6adb9;
  background: #f5f6f8; border-radius: 5px;
}
.mt-links { margin-left: auto; font-size: 10px; color: #4e5969; white-space: nowrap; }

/* 正文 */
.pw-body { display: flex; flex: 1; min-height: 0; }
.pw-doc { flex: 1; min-width: 0; padding: 18px 22px; overflow: hidden; }
.pw-doc h5 { margin-bottom: 6px; font-size: 19px; font-weight: 600; line-height: 1.5; color: #111; }
.pw-line { margin: 8px 0 10px; font-size: 11px; line-height: 1.9; color: #4e5969; }
.pw-note { margin-top: 6px; font-size: 9.5px; color: #a6adb9; }
.pw-side {
  width: 118px;
  flex: none;
  padding: 18px 12px;
  font-size: 10px;
  background: #fafbfc;
  border-left: 1px solid #f0f1f3;
}
.pw-side-t { margin-bottom: 8px; font-size: 9.5px; color: #a6adb9; }
.pw-side-l { padding: 4px 6px; margin-bottom: 1px; color: #4e5969; border-radius: 4px; }
.pw-side-l.on { color: #0a7a49; background: #eafaf2; }

.pw-body--sheet { height: auto; align-items: flex-start; }

/* 提示块：真实是 3px 左边线 + 同色系浅底 */
.cal {
  margin: 5px 0;
  padding: 6px 9px;
  font-size: 10px; line-height: 1.7;
  border-left: 3px solid #2563eb;
  border-radius: 4px;
}
.cal-info { color: #2563eb; background: #eef4ff; }
.cal-tip { color: #13875a; background: #eafaf2; border-left-color: #33a06f; }
.cal-warn { color: #a8650c; background: #fff7e8; border-left-color: #c47b13; }
.cal-danger { color: #c32b30; background: #fdeeef; border-left-color: #d93a3f; }
.h6 { margin: 9px 0 4px; font-size: 11px; font-weight: 600; color: #1d2129; }
.todo { font-size: 10.5px; line-height: 1.95; color: #4e5969; }
.todo li { position: relative; padding-left: 14px; }
.todo li::before {
  content: '';
  position: absolute; left: 0; top: 5px;
  width: 8px; height: 8px;
  border: 1px solid #c9ced6; border-radius: 2px;
}
.todo li.done { color: #a6adb9; text-decoration: line-through; }
.todo li.done::before { background: #00b96b; border-color: #00b96b; }
.todo li.done::after {
  content: '';
  position: absolute; left: 2.5px; top: 6px;
  width: 3px; height: 5px;
  border: solid #fff; border-width: 0 1.4px 1.4px 0;
  transform: rotate(42deg);
}

/* 正文表格：真实是普通 table + 1px 细线，不是 Excel 网格 */
.tbx { margin-top: 6px; overflow: hidden; border-radius: 4px; }
.tbx table { width: 100%; border-collapse: collapse; font-size: 10px; color: #4e5969; }
.tbx th, .tbx td {
  padding: 5px 8px;
  text-align: left;
  border: 1px solid #e3e8ee;
}
.tbx th { font-weight: 600; color: #1d2129; background: #fafbfc; }

/* 附件行 */
.files { display: grid; gap: 6px; margin-top: 6px; }
.file { display: flex; align-items: center; gap: 8px; padding: 6px 9px; background: #fafbfc; border: 1px solid #f0f1f3; border-radius: 6px; }
.file i { width: 18px; height: 18px; flex: none; border-radius: 4px; }
.fi-img { background: #e8f3ff; box-shadow: inset 0 0 0 1px #bcd8ff; }
.fi-doc { background: #eafaf2; box-shadow: inset 0 0 0 1px #b6ebd0; }
.fi-vid { background: #fff4e6; box-shadow: inset 0 0 0 1px #ffdca8; }
.file b { display: block; font-size: 10px; font-weight: 500; color: #1d2129; line-height: 1.4; }
.file span { display: block; font-size: 9px; color: #a6adb9; }

/* 思维导图：横向树，根实心绿、一级分支实色、二级白底彩边，连线是三次贝塞尔 */
.mm-bar { display: flex; justify-content: flex-end; padding: 8px 12px 0; }
.mm-btn {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px;
  font-size: 10px; color: #4e5969;
  background: #fafbfc; border: 1px solid #e3e8ee; border-radius: 5px;
}
.mm-wrap { flex: 1; min-height: 0; padding: 4px 10px 10px; }
.mm-svg { display: block; width: 100%; height: 100%; }
.mm-edges path { fill: none; stroke-width: 1.6; stroke-linecap: round; opacity: 0.55; }
.mm-svg text { font-family: var(--font); }

/* 目录：左树右文 */
.kw-body { display: flex; flex: 1; min-height: 0; }
.kw-side {
  width: 158px;
  flex: none;
  padding: 10px 8px;
  background: #f7f8fa;
  border-right: 1px solid #f0f1f3;
  font-size: 10px;
}
.kw-main { flex: 1; min-width: 0; padding: 16px 22px; overflow: hidden; }
.kw-crumb { margin-bottom: 6px; font-size: 9.5px; color: #b0b6be; }
.kw-main h5 { margin-bottom: 6px; font-size: 18px; font-weight: 600; color: #111; }
.kw-foot {
  margin-top: 14px; padding-top: 8px;
  font-size: 9.5px; color: #b0b6be;
  border-top: 1px solid #f2f3f5;
}

/* 历史版本抽屉 */
.vd { display: flex; flex-direction: column; flex: 1; min-height: 0; }
.vd-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex: none;
  padding: 14px 18px 12px;
  border-bottom: 1px solid #f0f1f3;
}
.vd-head b { display: block; margin-bottom: 4px; font-size: 14px; font-weight: 600; color: #1d2129; }
.vd-head span { display: block; font-size: 10px; line-height: 1.7; color: #a6adb9; }
.vd-x { font-size: 13px; font-style: normal; color: #b0b6be; }
.vd-body { display: flex; flex: 1; min-height: 0; }
.vd-list {
  width: 168px;
  flex: none;
  padding: 8px;
  overflow-y: auto;
  scrollbar-width: none;
  border-right: 1px solid #f0f1f3;
}
.vd-list::-webkit-scrollbar { width: 0; }
.vd-filter { padding: 2px 4px 8px; font-size: 9.5px; color: #86909c; }
.vitem { padding: 5px 8px; margin-bottom: 1px; border-radius: 5px; }
.vitem b { display: block; font-size: 10.5px; font-weight: 600; color: #1d2129; }
.vitem span { display: block; font-size: 9px; color: #b0b6be; }
.vitem em { display: block; margin-top: 2px; font-size: 9px; font-style: normal; }
.vitem em span { display: inline; }
.vitem.is-on { background: #eef9f3; }
.vitem.is-on b { color: #0a7a49; }
.s-add { color: #1a9c5b; }
.s-del { color: #d14343; }
.s-mod { color: #c07a12; }
.s-none { color: #b0b6be; }
.vd-detail { flex: 1; min-width: 0; padding: 14px 16px; }
.vd-dhead { display: flex; align-items: baseline; gap: 10px; padding-bottom: 10px; border-bottom: 1px solid #f2f3f5; }
.vd-dhead b { font-size: 12px; font-weight: 600; color: #1d2129; }
.vd-dhead span { font-size: 9.5px; color: #b0b6be; }
.vd-dhead em { margin-left: auto; font-size: 9.5px; font-style: normal; color: #a6adb9; }
.vd-rows { padding-top: 4px; }
.vrow { display: flex; gap: 8px; padding: 7px 0; border-bottom: 1px dashed #f0f1f3; font-size: 10px; line-height: 1.7; }
.vrow b { width: 10px; flex: none; text-align: center; font-weight: 700; }
.vrow p { margin: 0; color: #4e5969; }
.vrow.add b { color: #1a9c5b; }
.vrow.mod b { color: #c07a12; }
.vrow.del b { color: #d14343; }
.vrow.del p { color: #a6adb9; text-decoration: line-through; }
.vd-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex: none;
  padding: 10px 16px;
  border-top: 1px solid #f0f1f3;
  background: #fcfcfd;
}
.vd-foot span { font-size: 9.5px; color: #a6adb9; }
.btn-sm {
  display: inline-flex; align-items: center;
  height: 26px; padding: 0 12px;
  font-size: 10.5px; color: #fff; white-space: nowrap;
  background: #00b96b; border-radius: 5px;
}

/* 成员与邀请码 */
.mbr { display: flex; flex: 1; flex-direction: column; justify-content: center; padding: 14px 18px 16px; }
.mbr-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.mbr-head b { font-size: 14px; font-weight: 600; color: #1d2129; }
.mbr-t tr:first-child th { border-top: 1px solid #e3e8ee; }
.mbr-t td { height: 34px; color: #4e5969; }
.mbr-t th:last-child, .mbr-t td:last-child { text-align: right; color: #a6adb9; }
.sel { padding: 1px 7px; font-size: 9.5px; color: #4e5969; background: #fafbfc; border: 1px solid #e3e8ee; border-radius: 4px; }
.mbr-note { margin: 8px 0 12px; font-size: 9.5px; color: #a6adb9; }
.inv { padding: 10px 12px; background: #fafbfc; border: 1px solid #f2f3f5; border-radius: 8px; }
.inv-h { display: block; margin-bottom: 8px; font-size: 11px; font-weight: 600; color: #1d2129; }
.inv-row { display: flex; align-items: center; gap: 10px; height: 30px; font-size: 9.5px; }
.inv-row code { font-family: var(--mono); font-size: 10px; letter-spacing: 0.6px; color: #1d2129; }
.inv-row em { flex: 1; font-style: normal; color: #b0b6be; }
.inv-row u { color: #1a9c5b; text-decoration: none; }
.inv-row.is-off { opacity: 0.5; }
.inv-row.is-off u { color: #b0b6be; }
.inv-note { margin: 8px 0 0; font-size: 9px; line-height: 1.7; color: #a6adb9; }
.inv-row a { color: #1a9c5b; }

/* ==========================================================================
   全端覆盖（深色带）
   ========================================================================== */
.darkband { padding: 140px 0; background: #000; }
.darkband h2 {
  font-size: 60px;
  font-weight: 500;
  line-height: 105px;
  color: #fff;
  text-align: center;
}
.plats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
  margin-top: 74px;
}
.plat { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.plat-ico {
  display: grid; place-items: center;
  width: 66px; height: 66px;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.plat-ico svg { width: 52px; height: 52px; }
.plat:hover .plat-ico { transform: translateY(-6px) scale(1.06); }
.plat-btn {
  display: grid; place-items: center;
  width: 100%; height: 34px;
  font-size: 12.5px; color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 5px;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s;
}
.plat:hover .plat-btn { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.8); }

/* ==========================================================================
   案例墙
   ========================================================================== */
.cases { padding: 130px 0 96px; }
.cases h2 {
  font-size: 60px;
  font-weight: 700;
  line-height: 105px;
  letter-spacing: -0.5px;
  color: var(--ink-strong);
}
.masonry {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 72px;
  align-items: start;
}
.mcol { display: grid; gap: 24px; }
.mcard {
  padding: 26px 24px 28px;
  background: #fff;
  border: 1px solid #f0f1f3;
  border-radius: 14px;
  transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.3s ease;
}
.mcard:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 44px -24px rgba(23, 43, 77, 0.28);
}
.mc-tag {
  display: inline-block;
  padding: 1px 8px;
  margin-bottom: 12px;
  font-size: 11px;
  color: var(--green);
  background: #ebf9f2;
  border-radius: 4px;
}
.mcard h4 { font-size: 17px; font-weight: 600; color: var(--ink-strong); margin-bottom: 12px; line-height: 1.5; }
.mc-h { margin: 16px 0 4px; font-size: 12.5px; font-weight: 600; color: #1d2129; }
.mc-p { font-size: 12.5px; line-height: 1.85; color: #86909c; }
.mc-p code { padding: 1px 4px; font-size: 11.5px; color: #0a7a49; background: #ebf9f2; border-radius: 3px; }
.mc-kbd { display: flex; align-items: center; gap: 4px; margin: 8px 0 4px; font-size: 11px; color: #86909c; }
.mc-kbd kbd { padding: 0 4px; font-size: 10px; background: #f5f6f7; border: 1px solid #e5e6eb; border-radius: 3px; }
.mc-code {
  margin-top: 10px; padding: 12px 14px;
  font-family: var(--mono); font-size: 10.5px; line-height: 1.9;
  color: #abb2bf; background: #282c34; border-radius: 8px;
  overflow: hidden;
}
.mc-code i { display: block; font-style: normal; white-space: pre; }
.mc-code .kw { color: #c678dd; }
.mc-code .str { color: #98c379; }
.mc-code .fn { color: #61afef; }
.mc-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 10px 0 6px; }
.mc-photos--3 { grid-template-columns: repeat(3, 1fr); }
.mc-photos--2 { grid-template-columns: 1fr 1fr; }
.ph {
  position: relative; display: block; height: 82px; border-radius: 6px;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), inset 0 -14px 26px -20px rgba(0, 0, 0, 0.55);
}
/* 细颗粒，让纯渐变看起来像照片而不是色块 */
.ph::after {
  content: '';
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='90' height='90'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='90' height='90' filter='url(%23n)' opacity='0.34'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  opacity: 0.55;
  pointer-events: none;
}
.mc-photos--3 .ph { height: 62px; }
.mc-meta { margin-top: 6px; font-size: 10.5px; color: #b6bcc6; }
.mc-books { display: grid; gap: 6px; margin-top: 6px; }
.bk {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 10px; font-size: 11.5px; color: #1d2129;
  background: #fafbfc; border-radius: 5px;
}
.bk span { font-size: 10px; color: #b6bcc6; }
.mc-role { display: flex; gap: 12px; margin: 6px 0 12px; }
.role-card { flex: 1; padding: 10px 12px; background: #fafbfc; border-radius: 8px; }
.rc-h { font-size: 11px; font-weight: 600; color: #1d2129; margin-bottom: 6px; }
.rc-row { display: flex; justify-content: space-between; font-size: 10.5px; color: #86909c; line-height: 1.9; }
.rc-row b { font-weight: 500; color: #4e5969; }
.radar { width: 96px; flex: none; display: grid; place-items: center; }
.radar svg { width: 96px; height: 96px; }
.mc-chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.chip { padding: 2px 8px; font-size: 10.5px; border-radius: 20px; }
.c-green { color: #0a7a49; background: #ebf9f2; }
.c-blue { color: #166eff; background: #eaf1ff; }
.c-amber { color: #b7791f; background: #fff6e5; }
.c-red { color: #d13b3b; background: #ffeceb; }
.c-purple { color: #7048c4; background: #f3edff; }
.mc-steps { display: grid; gap: 8px; margin-top: 12px; }
.step { display: flex; align-items: center; gap: 10px; }
.step i {
  display: grid; place-items: center;
  width: 22px; height: 22px; flex: none;
  font-size: 11px; font-style: normal; font-weight: 600; color: var(--green);
  background: #ebf9f2; border-radius: 50%;
}
.step b { display: block; font-size: 12px; color: #1d2129; line-height: 1.5; }
.step span { display: block; font-size: 10.5px; color: #a6adb9; }
.mc-quote {
  margin-top: 16px; padding: 10px 12px;
  font-size: 11.5px; color: #86909c;
  background: #fafbfc; border-left: 3px solid #e5e6eb; border-radius: 4px;
}

.mc-prog { display: grid; gap: 9px; margin: 12px 0 4px; }
.mp { display: flex; align-items: center; gap: 9px; font-size: 12px; color: #4e5969; }
.mp > span { width: 32px; flex: none; }
.mp > i { flex: 1; height: 5px; overflow: hidden; background: #f0f1f3; border-radius: 3px; }
.mp > i > b { display: block; height: 100%; width: var(--w); background: linear-gradient(90deg, #21ce85, #00b96b); border-radius: 3px; }
.mp > em { width: 34px; flex: none; font-size: 10.5px; font-style: normal; color: #a6adb9; text-align: right; }

/* 照片占位（多层渐变模拟实拍：云团用三块径向光斑叠加，避免"一个球"的假感） */
.ph-cloud1 {
  background:
    radial-gradient(closest-side at 26% 64%, #fff 0%, rgba(255,255,255,.94) 46%, rgba(255,255,255,0) 100%),
    radial-gradient(closest-side at 52% 50%, #fff 0%, rgba(255,255,255,.9) 50%, rgba(255,255,255,0) 100%),
    radial-gradient(closest-side at 78% 66%, #fff 0%, rgba(255,255,255,.86) 44%, rgba(255,255,255,0) 100%),
    linear-gradient(178deg, #5fa4d8 0%, #a8cfe8 58%, #dbe8f1 100%);
}
.ph-cloud2 {
  background:
    radial-gradient(closest-side at 30% 58%, #fff6e0 0%, rgba(255,246,224,.9) 48%, rgba(255,246,224,0) 100%),
    radial-gradient(closest-side at 58% 44%, #ffe7bd 0%, rgba(255,231,189,.85) 50%, rgba(255,231,189,0) 100%),
    radial-gradient(closest-side at 82% 62%, #ffd9a6 0%, rgba(255,217,166,.8) 44%, rgba(255,217,166,0) 100%),
    linear-gradient(172deg, #6b7fb0 0%, #d79c86 52%, #f0c8a0 100%);
}
.ph-cloud3 {
  background:
    radial-gradient(closest-side at 34% 56%, #fff 0%, rgba(255,255,255,.95) 50%, rgba(255,255,255,0) 100%),
    radial-gradient(closest-side at 62% 42%, #f2f8fc 0%, rgba(242,248,252,.88) 46%, rgba(242,248,252,0) 100%),
    radial-gradient(closest-side at 86% 70%, #fff 0%, rgba(255,255,255,.7) 40%, rgba(255,255,255,0) 100%),
    linear-gradient(184deg, #3d8fcb 0%, #86bce0 62%, #cfe2ee 100%);
}
.ph-cloud4 {
  background:
    radial-gradient(closest-side at 30% 50%, #e8edf2 0%, rgba(232,237,242,.92) 50%, rgba(232,237,242,0) 100%),
    radial-gradient(closest-side at 60% 60%, #d5dce4 0%, rgba(213,220,228,.88) 48%, rgba(213,220,228,0) 100%),
    radial-gradient(closest-side at 84% 44%, #eef2f6 0%, rgba(238,242,246,.8) 44%, rgba(238,242,246,0) 100%),
    linear-gradient(180deg, #7c8895 0%, #aeb8c2 60%, #ccd3da 100%);
}
.ph-cloud5 {
  background:
    radial-gradient(closest-side at 32% 58%, #ffe9c8 0%, rgba(255,233,200,.9) 48%, rgba(255,233,200,0) 100%),
    radial-gradient(closest-side at 62% 46%, #ffd7a8 0%, rgba(255,215,168,.85) 50%, rgba(255,215,168,0) 100%),
    radial-gradient(closest-side at 84% 66%, #ffc9a0 0%, rgba(255,201,160,.78) 44%, rgba(255,201,160,0) 100%),
    linear-gradient(176deg, #4f5f86 0%, #a3799a 48%, #f0b98c 100%);
}
.ph-cat1 { background: radial-gradient(closest-side at 46% 56%, #e8dcd0 0%, rgba(232,220,208,.8) 52%, rgba(232,220,208,0) 100%), linear-gradient(150deg, #4e5661, #7d848e 55%, #b3a89e); }
.ph-cat2 { background: radial-gradient(closest-side at 54% 50%, #f2ece4 0%, rgba(242,236,228,.82) 52%, rgba(242,236,228,0) 100%), linear-gradient(202deg, #5f4d42, #96806e 58%, #c9b6a4); }
.ph-sea { background: radial-gradient(70% 30% at 50% 42%, rgba(255,255,255,.55) 0%, rgba(255,255,255,0) 100%), linear-gradient(180deg, #a9cfe8 0%, #d6e9f4 41%, #4a90b8 42%, #1c5b80 100%); }
.ph-forest { background: radial-gradient(60% 36% at 50% 30%, rgba(240,255,246,.5) 0%, rgba(240,255,246,0) 100%), linear-gradient(180deg, #cfe3d6 0%, #7cab8f 38%, #2f5b45 100%); }
.ph-night { background: radial-gradient(2px 2px at 20% 25%, #fff 50%, transparent 51%), radial-gradient(1.5px 1.5px at 65% 40%, #fff 50%, transparent 51%), radial-gradient(1.5px 1.5px at 40% 70%, #fff 50%, transparent 51%), radial-gradient(1px 1px at 80% 60%, #fff 50%, transparent 51%), linear-gradient(160deg, #0e1730, #2b3b5e); }
.ph-mount { background: linear-gradient(163deg, transparent 0 36%, rgba(255,255,255,.75) 38% 48%, transparent 50%), linear-gradient(160deg, #dfeaf4 0%, #a8bdcf 34%, #5d7791 35%, #2c405a 100%); }
.ph-dune { background: radial-gradient(70% 40% at 30% 24%, rgba(255,240,205,.75) 0%, rgba(255,240,205,0) 100%), linear-gradient(158deg, #f6dfb0 0%, #e6bd7c 40%, #c2925a 72%, #96693c 100%); }
.ph-sunset { background: radial-gradient(closest-side at 50% 64%, #ffe0a0 0%, rgba(255,224,160,.7) 42%, rgba(255,224,160,0) 100%), linear-gradient(180deg, #46526b, #a6728c 55%, #f0a878); }
.ph-peak { background: linear-gradient(198deg, transparent 0 34%, rgba(255,255,255,.6) 36% 46%, transparent 48%), linear-gradient(200deg, #cfdae6 0%, #8fa4b8 38%, #43566a 39%, #26323f 100%); }

/* ==========================================================================
   数据安全
   ========================================================================== */
.security { padding: 150px 0 0; }
.security h2 {
  font-size: 60px;
  font-weight: 700;
  line-height: 105px;
  letter-spacing: -0.5px;
  color: var(--ink-strong);
}
.sec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
  margin-top: 70px;
}
.sec-item { display: flex; gap: 18px; align-items: flex-start; }
.sec-ico { width: 56px; height: 56px; flex: none; }
.sec-ico svg { width: 56px; height: 56px; }
.sec-item h5 { font-size: 20px; font-weight: 600; color: var(--ink-strong); line-height: 1.6; margin-bottom: 4px; }
.sec-item p { font-size: 14px; line-height: 1.7; color: var(--gray-2); }


/* ==========================================================================
   书法 slogan
   ========================================================================== */
.slogan {
  padding: 150px 0;
  font-family: 'STKaiti', 'KaiTi', 'Kaiti SC', 'SimSun', serif;
  font-size: 32px;
  letter-spacing: 2px;
  color: #1a1a1a;
  text-align: center;
}

/* ==========================================================================
   页脚
   ========================================================================== */
.foot { padding-top: 60px; background: #fafbfc; border-top: 1px solid #f2f3f5; }
.foot-grid { display: grid; grid-template-columns: 1fr 620px; gap: 40px; padding-bottom: 46px; }
.fb-name { display: flex; align-items: center; gap: 8px; font-size: 24px; font-weight: 700; color: #1d2129; }
.fb-mark { width: 24px; height: 24px; }
.foot-brand p { margin-top: 4px; font-size: 13px; color: var(--gray-2); }
.fb-social { display: flex; gap: 14px; margin: 16px 0 20px; }
.fb-social a {
  display: grid; place-items: center;
  width: 18px; height: 18px;
  font-size: 11px; color: #86909c;
  transition: color 0.2s;
}
.fb-social a:hover { color: var(--green); }
.fb-qr { display: flex; align-items: center; gap: 12px; }
.qr {
  position: relative;
  width: 62px; height: 62px; flex: none;
  background: #fff;
  background-image:
    repeating-conic-gradient(#3d4550 0 25%, #fff 0 50%);
  background-size: 7px 7px;
  border: 4px solid #fff;
  border-radius: 4px;
  box-shadow: 0 0 0 1px #ececec;
}
.qr::before, .qr::after {
  content: ''; position: absolute;
  width: 14px; height: 14px;
  background: #fff; border: 3px solid #3d4550; box-sizing: border-box;
}
.qr::before { top: 2px; left: 2px; }
.qr::after { bottom: 2px; right: 2px; }
.fb-qr b { display: block; font-size: 12.5px; font-weight: 600; color: #1d2129; line-height: 1.7; }
.fb-qr span { display: block; font-size: 11.5px; color: #a6adb9; line-height: 1.6; }

.foot-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.fcol h6 { margin-bottom: 14px; font-size: 13px; font-weight: 600; color: #1d2129; }
.fcol a { display: block; margin-bottom: 10px; font-size: 13px; color: #4e5969; transition: color 0.2s; }
.fcol a:hover { color: var(--green); }
.foot-bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 6px 18px;
  padding: 16px 24px;
  font-size: 12.5px;
  color: #86909c;
  border-top: 1px solid #ececec;
}


/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1240px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; }
  .hero h1 { font-size: 76px; line-height: 96px; }
  .hero-actions { margin-top: 48px; }
  .duo-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .gcard { padding: 36px 32px 0; }
  .gcard h3 { font-size: 24px; }
  .feat-tabs, .feat--rev .feat-tabs { width: 340px; }
  .ft-name { font-size: 26px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .plats { grid-template-columns: repeat(3, 1fr); gap: 26px 12px; }
}

@media (max-width: 1024px) {
  .nav-links { gap: 18px; }
  .nav-links a:nth-child(n + 7) { display: none; }
  .hero { padding: 56px 0 90px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero h1 { font-size: 64px; line-height: 80px; }
  .hero-text { padding-top: 0; }
  .hero-visual { margin-top: 24px; }
  .duo-grid { grid-template-columns: 1fr; }
  .gcard { height: 420px; }
  .feat-body, .feat--rev .feat-body { flex-direction: column; align-items: stretch; gap: 32px; }
  .feat-tabs, .feat--rev .feat-tabs { width: 100%; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
  .feat--rev .feat-tabs { grid-template-columns: repeat(3, 1fr); }
  .ft { margin-bottom: 0; }
  .ft-name { font-size: 18px; line-height: 1.6; }
  .ft-desc { display: none !important; }
  .ft.is-on .ft-desc { display: none !important; }
  .plats { grid-template-columns: repeat(4, 1fr); gap: 26px 12px; }
  .darkband { padding: 90px 0; }
  .masonry { grid-template-columns: 1fr 1fr; }
  .mcol:nth-child(3) { display: none; }
  .sec-grid { grid-template-columns: 1fr; gap: 32px; }
  .qa-grid { grid-template-columns: 1fr; gap: 0; }
  .faq { padding: 80px 0 20px; }
  .feat h2, .cases h2, .security h2, .faq h2, .darkband h2 { font-size: 44px; line-height: 72px; }
  .pw-body, .kw-body, .vd { height: 420px; }
}

@media (max-width: 768px) {
  .wrap { width: calc(100% - 40px); }
  .nav { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-cta { margin-left: auto; }
  .hero h1 { font-size: 46px; line-height: 58px; }
  .hero-eyebrow { margin-bottom: 16px; font-size: 13px; letter-spacing: 0.06em; gap: 9px; }
  .hero-sub { margin-top: 20px; font-size: 16px; line-height: 28px; max-width: 100%; }
  .hero-actions { margin-top: 36px; gap: 12px; }
  .btn { width: auto; flex: 1; height: 48px; font-size: 16px; }
  .app { height: 400px; }
  .app-side { display: none; }
  .app-links { display: none; }
  .app-find { max-width: none; }
  .gcard { height: auto; padding: 32px 24px 0; border-radius: 24px; }
  .gcard h3 { font-size: 20px; line-height: 28px; }
  .gcard p { font-size: 14px; line-height: 24px; }
  .gcard-shot { position: relative; left: 0; right: 0; height: 220px; margin-top: 24px; }
  .mini-side { display: none; }
  .duo { padding-bottom: 60px; }
  .feat, .cases, .security { padding: 60px 0 20px; }
  .feat--rev { padding-bottom: 40px; }
  .feat h2, .cases h2, .security h2, .faq h2, .darkband h2 { font-size: 30px; line-height: 48px; }
  .feat-body { margin-top: 32px; }
  .feat-tabs, .feat--rev .feat-tabs { grid-template-columns: 1fr 1fr; }
  .ft-name { font-size: 16px; }
  .pw-body, .kw-body, .vd { height: 360px; }
  .pw-side, .kw-side { display: none; }
  .pw-body--sheet { height: auto; }
  .mm-wrap { height: 320px; }
  .vd-list { width: 96px; padding: 6px 4px; }
  .vd-detail { padding: 10px 10px; }
  .vd-dhead em { display: none; }
  .vrow { font-size: 9px; }
  .mbr-t th:nth-child(3), .mbr-t td:nth-child(3) { display: none; }
  .mbr-t td { white-space: nowrap; }
  .inv-row em { display: none; }
  .app-tools { -webkit-mask-image: linear-gradient(90deg, #000 84%, transparent); mask-image: linear-gradient(90deg, #000 84%, transparent); }
  .mt-links { display: none; }
  .mt-find { max-width: none; }
  .plats { grid-template-columns: repeat(2, 1fr); }
  .masonry { grid-template-columns: 1fr; }
  .mcol:nth-child(3) { display: grid; }
  .slogan { padding: 70px 0; font-size: 22px; }
  .foot-grid { grid-template-columns: 1fr; gap: 32px; }
  .foot-cols { grid-template-columns: 1fr 1fr; }
  .foot-bar { font-size: 11px; text-align: center; }
  .faq { padding: 60px 0 10px; }
  .qa summary { font-size: 15px; }
  .qa p { font-size: 13.5px; }
  .dark-lead { font-size: 13.5px; line-height: 24px; }
}


/* ==========================================================================
   补充：深色带导语 / FAQ / 页脚说明
   ========================================================================== */
.dark-lead {
  margin-top: 14px;
  font-size: 15px;
  line-height: 28px;
  color: #8b9199;
  text-align: center;
}
.faq { padding: 130px 0 40px; }
.faq h2 {
  font-size: 60px;
  font-weight: 700;
  line-height: 105px;
  letter-spacing: -0.5px;
  color: var(--ink-strong);
}
.qa-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 56px;
  margin-top: 48px;
}
.qa { padding: 22px 0; border-bottom: 1px solid #f0f1f3; }
.qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 600;
  color: #1d2129;
  cursor: pointer;
  list-style: none;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary:hover { color: var(--green); }
.qa summary::after { content: '+'; flex: none; font-size: 18px; font-weight: 400; line-height: 1; color: #b6bcc6; }
.qa[open] summary::after { content: '−'; color: var(--green); }
.qa p {
  max-width: 500px;
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray-2);
}
.fb-note { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 16px; }
.fb-note span { font-size: 12.5px; color: #a6adb9; }